Add ability to toggle word detection levels to bot settings

[brendacs]

!set detection high = detect any string with the strings on the stop/delete lists
Example: !delete stupid deletes messages "randomstupidrandom" and "random stupid"

!set detection low = only detect the exact words (with spaces around it) on the stop/delete lists
Example: !delete stupid deletes message "random stupid" but not "randomstupidrandom"

[brendacs]

Not a high demand or need for this feature and kind of annoying to do, so putting this on hold for now.